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Chemistry
Chemistry
Problem
A student prepares four separate aqueous solutions at
25
∘
C
25\,^{\circ}\text{C}
25
∘
C
: A.
1.0
×
10
−
3
M
1.0 \times 10^{-3}\,\text{M}
1.0
×
1
0
−
3
M
Mg(OH)
2
_2
2
B.
p
O
H
=
6.9
\mathrm{pOH} = 6.9
pOH
=
6.9
C.
[
H
3
O
+
]
=
4.0
×
10
−
8
M
[\mathrm{H_3O^+}] = 4.0 \times 10^{-8}\,\text{M}
[
H
3
O
+
]
=
4.0
×
1
0
−
8
M
D.
0.0015
M
0.0015\,\text{M}
0.0015
M
HNO
3
_3
3
Which sequence lists the solutions from most basic to most acidic? a)
A
,
B
,
C
,
D
A, B, C, D
A
,
B
,
C
,
D
b)
C
,
A
,
B
,
D
C, A, B, D
C
,
A
,
B
,
D
c)
A
,
C
,
B
,
D
A, C, B, D
A
,
C
,
B
,
D
d)
B
,
C
,
A
,
D
B, C, A, D
B
,
C
,
A
,
D
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